package com.example.test5;

import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import androidx.activity.EdgeToEdge;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.graphics.Insets;
import androidx.core.view.ViewCompat;
import androidx.core.view.WindowInsetsCompat;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    public static int MODE=MODE_PRIVATE;
    public static final  String PREFERENCE_NAME="SaveSetting";
    Button btnLogin;
    EditText etAccount,etPassword;
    SharedPreferences sharedPreferences;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btnLogin = findViewById(R.id.btn_login);
        etAccount = findViewById(R.id.account_input);
        etPassword = findViewById(R.id.password_input);

        sharedPreferences = getSharedPreferences(PREFERENCE_NAME,MODE);

        btnLogin.setOnClickListener(this);

        loadSavedPreferences();
    }

    private void loadSavedPreferences() {
        String savedAccount = sharedPreferences.getString("account", "");
        String savedPassword = sharedPreferences.getString("password", "");

        etAccount.setText(savedAccount);
        etPassword.setText(savedPassword);
    }

    @Override
    public void onClick(View v) {
        if(v.getId() == R.id.btn_login){
            String account = etAccount.getText().toString().trim();
            String password = etPassword.getText().toString().trim();

            if (account.isEmpty() || password.isEmpty()) {
                Toast.makeText(this, "账户和密码不能为空", Toast.LENGTH_SHORT).show();
                return;
            }

            SharedPreferences.Editor editor = sharedPreferences.edit();
            editor.putString("account", account);
            editor.putString("password", password);
            editor.apply();

            Toast.makeText(this, "登录成功且账户密码已保存", Toast.LENGTH_SHORT).show();
        }

    }

}